[Okular-devel] [Bug 291129] New: Okular easily occupies huge memory after scrolling in pdf files

[Jekyll Wu]

https://bugs.kde.org/show_bug.cgi?id=291129

           Summary: Okular easily occupies huge memory after scrolling in
                    pdf files
           Product: okular
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: okular-devel at kde.org
        ReportedBy: adaptee at gmail.com


Version:           unspecified (using Devel) 
OS:                Linux

After scrolling for about 100 or 200 pages in a pdf file, Okular occupies huge
memory(1GB or so) easily.

I know this sounds unlikely to happen, but the problem has bothered me for
quite some time. And I can reproduce the problem using fresh account and
default settings in multiple distributions, so it really looks like a bug.



Reproducible: Always

Steps to Reproduce:
1. open a pdf file which contains enough pages ( > 200 pages).
2. press 'PgDn' and keep scrolling for about 200 pages
3. check the memory usage of Okular in ksysguard


Actual Results:  
Okular occupies huge memory (1GB or so), mostly on heap.

Expected Results:  
Okular occupies memory in an acceptable way.

I tried evince. No problem. 

I'm using okular built from master branch, poppler-0.18.2 and Qt-4.8.

I'm having this problem in Arch, Gentoo and Fedora 16.

Feel free to ask for extra information that may help.

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